Pump connection



Patented July 7, 1925.

E Q F CH suivrnnn B. sAnen'n'r, or HUNrIneToNrhnK, oamronnm.

- PUMP oonnn'erron.

Application filed July 19, 1924. Serial- No. 727,027.

To all whom it may concern: i Be it knownthat I, SUMNER a citizen of the United States, residing at Huntington Park, in the county of Los Angeles and State of California, have invented a new and useful Pump 1 Connection,

of which the following is a specification,

This invention relates to pump connections of the type employed with deepwell pumps i a It is customary in hooking up the pump to the walking beam to so connect the pump that the upper face of the walking beam is substantially horizontal when the pump plunger is substantially half way between the upper and lower ends of its stroke. This results in the polish rod being bent to one side of the axis of the pump to a. greater degree when the plunger is making the upper half of its stroke than when making the lower half of said stroke.

An object of this invention is to'provide a connection between the pump and walking beam that will insure that the polish rod will not, as above described, be bent out of line to a greater degree at the upper portion of its stroke than at the lower portion, thus minimizing wear on the polish rod and stufiiiug box.

A further object is to provide a connec; tion of this character of comparatively simple construction.

The accompanying drawings illustrate the invent-ion.

Figure 1 is a side view of a. pump connection constructed in accordance with the' provisions of this inventionand mounted on a walking beam, a fragment of which is shown. A fragment of the stanchion pivotally supporting the walking beam is also shown.

Fig, 2 is an enlarged sectional elevation on the line indicated by 2-2 Fig. 1.

The pump connection comprises a pair of members disposed on the opposite sides of the walking beam, indicated at 3, and extending below the under face thereof. Each of these members comprises a flat member 1-, a hollow cylindrical boss 5 at one end of the member 1, a'hollow cylindrical boss 6 at an intermediate portion of said member 4,- and a pair of spaced cylindrical bosses 7 at the lower end of the member 4. The boss 6 is positioned eccentric to a line connecting the bosses 5, 7 and for this reason the member 4 is widened sutficiently'to obtain B. SAnon'N'r,

this result. In this particular instance the memberet has a: straight portions at the opposite ends of which are l the bosses. 5, 7', and said member 4 also-has an arcuate portion 9. connected at its ends to the straight )OltlOll 8. f The boss; (3, is near the middleo the portion'9.

Lag screws lO'm-a'y be employed to first fasten the members 4 in position onopposite sides of the walking beam- 3, but said lag screws are not intended to sustain any of the load supported by the members i as said load is taken by the bosses 5 seated on the upper face 11 of the walking beam. The inner ends of the bosses 5 substantially meet and a bolt 12 passes through the bores of the bosses 5 to securely hold the members 4 toward one another. The bosses 6 seat against the under face 13 of the walking beam and a bolt 14- passes through the bores of the bosses 6. The bosses 7 of opposed members 4; are designed to hold a pin or bolt, not shown, connecting them, which pin or bolt supports the usual beam hanger that connects with the polish rod of thepump.

The distance of the bosses 7 7 from the bosses 5 is su'f'licient to bring the bosses 7 substantially on a level with the fulcrum point 15 of the walking beam when the upper face of the walking beam is substantially level, and when the pump is connected with ssi the Walking beam by the use of this inven- Y tion, the axis of the bosses 7 is the axis about which the beam hanger turns as the walking beam swings up and down.

In connecting up the pump with the walking beam by the use of this invention, the

pump plunger will be in the middle of its a operate the same distance above the position of Fig. 1 as below, and, accordingly, the polish rod will be bent equal amounts to one side of the axis of the pump when the pump plunger is at the upper and lower ends of its stroke.

The bosses 6 are for the purpose-of re- .sisting the lateral thrust of the pump hanger as the walking beam operates, and the eccentric positioning of said bosses in reference to a line connecting the bosses 5., 7 is for the purpose of bringing the bosses 6 far enough from the pump end of the walking'beamto clear the slot 16 through which a portion of the pump hanger projects.

bosses at their lower ends for receiving a' pin.

2. A pump connection comprising a pair of members having hollow bosses at thelr upper ends adaptedto seat on an operating member and having other hollowbosses at intermediate points adapted to seat against the under iace of the operating member, and bolts extending through the bosses, said members having other hollow bosses at their lower ends for reciving. a pin.

3. A pump connection comprising a pair of members having meansat their upperv the operating member.

4; The combination with a walking beam,

of members secured near one end of the walking beam againstswlnging and extend-v ing below the under face ofvth'e walking beam, and means on said members substantially on a level with the fulcrum point of thewalking beamwhen the upper face of the walking beam, is level for connecting said members with a pump hanger.

V Signed at Los Angeles, California, this 11th day of July, 1924:. r.

SUMNERB. SARGENT. 

